Always, without exception, even the obvious one you’re thinking of. Boring.
Porridge is good
The Friends blackout one is quite good
The Gang Self Quarantine is great
Fly is brilliant
Actually great shout, though a bit of an anomaly as half the series is set in that cell.
Mentioned this in the OP.
If they count, the Chinese Restaurant and Parking Garage episodes of Seinfeld are A+.
That episode of Red Dwarf where Lister and Rimmer are stuck on the ice planet is brilliant. “Alexander the Great’s Chief Eunuch,” great stuff